Mercurial > hg > early-roguelike

annotate arogue5/chase.c @ 93:8f7c082fde46

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Don't set DESTDIR via configure. DESTDIR ought to be set via option passed to 'make install'.
author John "Elwin" Edwards
date Mon, 26 Aug 2013 19:58:44 -0700
parents 0ed67132cf10
children 56e748983fa8
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
63
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
1 /*
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
2 * Code for one object to chase another
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
3 *
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
4 * Advanced Rogue
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
5 * Copyright (C) 1984, 1985 Michael Morgan, Ken Dalka and AT&T
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
6 * All rights reserved.
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
7 *
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
8 * Based on "Rogue: Exploring the Dungeons of Doom"
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
9 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
10 * All rights reserved.
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
11 *
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
12 * See the file LICENSE.TXT for full copyright and licensing information.
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
13 */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
14
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
15 #include <ctype.h>
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
16 #include <limits.h>
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
17 #include "curses.h"
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
18 #include "rogue.h"
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
19 #define MAXINT INT_MAX
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
20 #define MININT INT_MIN
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
21
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
22 coord ch_ret; /* Where chasing takes you */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
23
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
24
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
25
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
26
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
27
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
28 /*
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
29 * Canblink checks if the monster can teleport (blink). If so, it will
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
30 * try to blink the monster next to the player.
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
31 */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
32
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
33 bool
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
34 can_blink(tp)
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
35 register struct thing *tp;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
36 {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
37 register int y, x, index=9;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
38 coord tryp; /* To hold the coordinates for use in diag_ok */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
39 bool spots[9], found_one=FALSE;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
40
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
41 /*
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
42 * First, can the monster even blink? And if so, there is only a 50%
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
43 * chance that it will do so. And it won't blink if it is running or
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
44 * held.
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
45 */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
46 if (off(*tp, CANBLINK) || (on(*tp, ISHELD)) ||
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
47 on(*tp, ISFLEE) ||
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
48 (on(*tp, ISSLOW) && off(*tp, ISHASTE) && !(tp->t_turn)) ||
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
49 tp->t_no_move ||
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
50 (rnd(12) < 6)) return(FALSE);
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
51
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
52
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
53 /* Initialize the spots as illegal */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
54 do {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
55 spots[--index] = FALSE;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
56 } while (index > 0);
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
57
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
58 /* Find a suitable spot next to the player */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
59 for (y=hero.y-1; y<hero.y+2; y++)
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
60 for (x=hero.x-1; x<hero.x+2; x++, index++) {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
61 /* Make sure x coordinate is in range and that we are
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
62 * not at the player's position
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
63 */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
64 if (x<0 || x >= COLS || index == 4) continue;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
65
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
66 /* Is it OK to move there? */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
67 if (step_ok(y, x, NOMONST, tp) &&
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
68 (!isatrap(mvwinch(cw, y, x)) ||
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
69 rnd(10) >= tp->t_stats.s_intel ||
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
70 on(*tp, ISFLY))) {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
71 /* OK, we can go here. But don't go there if
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
72 * monster can't get at player from there
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
73 */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
74 tryp.y = y;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
75 tryp.x = x;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
76 if (diag_ok(&tryp, &hero, tp)) {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
77 spots[index] = TRUE;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
78 found_one = TRUE;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
79 }
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
80 }
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
81 }
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
82
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
83 /* If we found one, go to it */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
84 if (found_one) {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
85 char rch; /* What's really where the creatures moves to */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
86
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
87 /* Find a legal spot */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
88 while (spots[index=rnd(9)] == FALSE) continue;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
89
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
90 /* Get the coordinates */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
91 y = hero.y + (index/3) - 1;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
92 x = hero.x + (index % 3) - 1;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
93
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
94 /* Move the monster from the old space */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
95 mvwaddch(cw, tp->t_pos.y, tp->t_pos.x, tp->t_oldch);
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
96
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
97 /* Move it to the new space */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
98 tp->t_oldch = CCHAR( mvwinch(cw, y, x) );
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
99
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
100 /* Display the creature if our hero can see it */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
101 if (cansee(y, x) &&
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
102 off(*tp, ISINWALL) &&
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
103 !invisible(tp))
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
104 mvwaddch(cw, y, x, tp->t_type);
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
105
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)